摘要
求不定积分的方法有换元积分、分部积分、有理函数积分法等,注意问题之间的密切相关性与系统性,挖掘问题的内在联系,培养学生分析问题、解决问题的能力是很有必要的。文章主要阐述了三角函数恒等变形在不定积分中的应用,有助于学生掌握求不定积分的方法。
The integration by substitution,parts and rational function can be applied to provide the solution for indefinite integral.It is very important to develop students' capacity for paying attention to the close relationship between different problems,researching deep into the core of these problems,and solving them independently.This paper studies the application of identical transformation trigonometric function in indefinite integral,and hopes that it may bring some help to students in this aspect.
关键词
三角函数
恒等变形
不定积分
trigonometric function
identical transformation
indefinite integral
